Made in USA
Grey Hub Wheel Company
Grey Hub 17265 Gable Ave. Detroit, MI 48212 - Phone: 800-336-6389 or 313-891-1420 - Fax: 313-891-5270 - Email: sales@greyhub.com
In Between Sizes Standard Crown Tread C Standard Crown Tread A

Crown Tread Wheels

Standard Series

 For use on I-Beam, S-Beam or Channel

We machine our Crown Tread Wheels with a custom radius for better wear than standard industry tapers. All Grey Hub Crown Tread wheels are machined from close grain, porous-free molded castings. They are hardened and heat-treated through-out (not case-hardened) in an atmospheric furnace, oil quenched to eliminate distortion under high heat temperatures, producing uniform hardness for long, trouble-free service, under heat and other severe conditions.

All assemblies come equipped with a heavy duty jam nut, lock washer and grease fitting.
BEAM SIZE TREAD DIA
"A"
FLANGE DIA
"B"
TREAD WIDTH
"C"
WHEEL WIDTH
"D"
AXLE
DIA
"E"
AXLE LENGTH
"F"
MAX WHEEL LOAD
AT 100 RPM
ITEM NUMBER
FLANGELESS (PLAIN)
3" 2-1/2 --- --- 1-1/16 1/2 1-1/4 300
S250CT000-12PDF  3D
3" 2-1/2 --- --- 1-1/16 5/8 1-1/4 300
S250CT000-58PDF  3D
4" 3-1/4 --- --- 1-1/16 1/2 1-1/4 1000
S325CT000-12PDF  3D
4" 3-1/4 --- --- 1-1/16 5/8 1-1/4 1000
S325CT000-58PDF  3D
SINGLE FLANGED
3" 2-3/8 2-7/8 13/16 1-1/8 1/2 1-1/4 250
S238CT278-12PDF  3D
3" 2-3/8 2-7/8 13/16 1-1/8 5/8 1-1/4 250
S238CT278-58PDF  3D
4" 2-1/2 3-1/4 13/16 1-1/8 1/2 1-1/4 350
S250CT325-12PDF  3D
4" 2-1/2 3-1/4 13/16 1-1/8 5/8 1-1/4 350
S250CT325-58PDF  3D
4" 2-3/4 3-1/4 13/16 1-1/8 1/2 1-1/4 750
S275CT325-12PDF  3D
4" 2-3/4 3-1/4 13/16 1-1/8 5/8 1-1/4 750
S275CT325-58PDF  3D
4" 3 4 13/16 1-1/8 1/2 1-1/4 750
S300CT400-12PDF  3D
4" 3 4 13/16 1-1/8 5/8 1-1/4 750
S300CT400-58PDF  3D
4" 3-1/4 3-3/4 13/16 1-1/8 1/2 1-1/4 1000
S325CT375-12PDF  3D
4" 3-1/4 3-3/4 13/16 1-1/8 5/8 1-1/4 1000
S325CT375-58PDF  3D
4" 3-1/4 4-1/4 13/16 1-1/8 1/2 1-1/4 1000
S325CT425-12PDF  3D
4" 3-1/4 4-1/4 13/16 1-1/8 5/8 1-1/4 1000
S325CT425-58PDF  3D
5" 4 5 1-7/16 1-15/16 3/4 1-1/2 5000
D400CT500-34-112PDF  3D
5" 4 5 1-7/16 1-15/16 3/4 1-3/4 5000
D400CT500-34-134PDF  3D
5" 4 5 1-7/16 1-15/16 1" 1-1/2 5000
D400CT500-1-112PDF  3D
6" 4 5 1-7/16 1-15/16 1" 1-3/4 5000
D400CT500-1-134PDF  3D
6" 5 6 1-7/16 1-15/16 3/4 1-1/2 5000
D500CT600-34-112PDF  3D
6" 5 6 1-7/16 1-15/16 3/4 1-3/4 5000
D500CT600-34-134PDF  3D
6" 5 6 1-7/16 1-15/16 1" 1-1/2 5000
D500CT600-1-112PDF  3D
6" 5 6 1-7/16 1-15/16 1" 1-3/4 5000
D500CT600-1-134PDF  3D
Flangeless (Plain) Wheels are also available for all beam sizes.

Axle Dimensions - Standard

3" and 4" beam wheels are also available with 3/4" axles.
5" and 6" beam wheels can also be manufactured with axle diameters up to 1-3/8" and lengths to 3"

AXLE DIAMETER
"E"
AXLE LENGTH
"F"
PLAIN SHOULDER
"G"
THREAD LENGTH
"H"
1/2 1-1/4 3/8 7/8
5/8 1-1/4 3/8 7/8
3/4 1-1/2 1/2 1"
3/4 1-3/4 1/2 1-1/4"
1" 1-1/2 5/16 1-3/16
1" 1-3/4 5/16 1-7/16
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